#test function 

def add(a,b): 

    print "in python function add" 

    print "a = " + str(a) 

    print "b = " + str(b) 

    print "ret = " + str(a+b) 

    return 



def foo(a): 

    print "in python function foo" 

    print "a = " + str(a) 

    print "ret = " + str(a * a) 

    return
